1. Sakarya University Training and Research Hospital, Department of Medical Oncology, Sakarya
2. Gazi University Medical Faculty, Department of Medical Oncology, Ankara
3. Gaziosmanpasa University Medical Faculty, Department of Medical Oncology, Tokat
4. Dicle University Medical Faculty, Department of Medical Oncology, Diyarbakir
5. Gazi University Medical Faculty, Department of Radiation Oncology, Ankara
6. Marmara University Medical Faculty, Department of Medical Oncology, Istanbul
7. Ankara Ataturk Training and Research Hospital, Department of Medical Oncology, Ankara, Turkey